28762167

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 19041225

約数列:

[1, 3, 7, 21, 23, 47, 49, 69, 141, 147, 161, 181, 329, 483, 543, 987, 1081, 1127, 1267, 2303, 3243, 3381, 3801, 4163, 6909, 7567, 8507, 8869, 12489, 22701, 25521, 26607, 29141, 52969, 59549, 87423, 158907, 178647, 195661, 203987, 416843, 586983, 611961, 1250529, 1369627, 4108881, 9587389, 28762167]

約数ペア:

[(1, 28762167), (3, 9587389), (7, 4108881), (21, 1369627), (23, 1250529), (47, 611961), (49, 586983), (69, 416843), (141, 203987), (147, 195661), (161, 178647), (181, 158907), (329, 87423), (483, 59549), (543, 52969), (987, 29141), (1081, 26607), (1127, 25521), (1267, 22701), (2303, 12489), (3243, 8869), (3381, 8507), (3801, 7567), (4163, 6909)]